You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
Copy file name to clipboardExpand all lines: microsoft-365/security/defender-endpoint/configure-advanced-scan-types-microsoft-defender-antivirus.md
+16-36Lines changed: 16 additions & 36 deletions
Display the source diff
Display the rich diff
Original file line number
Diff line number
Diff line change
@@ -1,19 +1,15 @@
1
1
---
2
2
title: Configure scanning options for Microsoft Defender Antivirus
3
3
description: You can configure Microsoft Defender Antivirus to scan email storage files, back-up or reparse points, network files, and archived files (such as .zip files).
@@ -60,27 +56,27 @@ For details on configuring Microsoft Configuration Manager (current branch), see
60
56
61
57
### Settings and locations
62
58
63
-
|Policy item and location|Default setting (if not configured)|PowerShell `Set-MpPreference` parameter or WMI property for `MSFT_MpPreference` class|
59
+
|Policy item and location|Default setting <br/>(if not configured)|PowerShell `Set-MpPreference` parameter <br/>or WMI property for `MSFT_MpPreference` class|
64
60
|---|---|---|
65
-
|Email scanning <p> **Scan**\>**Turn on e-mail scanning**<p>See [Email scanning limitations](#email-scanning-limitations) (in this article)|Disabled|`-DisableEmailScanning`|
66
-
| Script scanning | Enabled | This policy setting allows you to configure script scanning. If you enable or do not configure this setting, script scanning will be enabled. <p>See [Defender/AllowScriptScanning](/windows/client-management/mdm/policy-csp-defender)|
67
-
|Scan [reparse points](/windows/win32/fileio/reparse-points) <p> **Scan**\>**Turn on reparse point scanning**|Disabled|Not available <p>See [Reparse points](/windows/win32/fileio/reparse-points)|
68
-
|Scan mapped network drives <p> **Scan**\>**Run full scan on mapped network drives**|Disabled|`-DisableScanningMappedNetworkDrivesForFullScan`|
69
-
|Scan archive files (such as .zip or .rar files). <p> **Scan**\>**Scan archive files**|Enabled|`-DisableArchiveScanning` <p>The [extensions exclusion list](configure-extension-file-exclusions-microsoft-defender-antivirus.md) will take precedence over this setting.|
70
-
|Scan files on the network <p> **Scan**\>**Scan network files**|Enabled|`-DisableScanningNetworkFiles`|
|Scan removable drives during full scans only <p> **Scan**\>**Scan removable drives**|Disabled|`-DisableRemovableDriveScanning`|
61
+
|Email scanning <br/> **Scan**\>**Turn on e-mail scanning**<br/>See [Email scanning limitations](#email-scanning-limitations) (in this article)|Disabled|`-DisableEmailScanning`|
62
+
| Script scanning | Enabled | This policy setting allows you to configure script scanning. If you enable or do not configure this setting, script scanning is enabled. <br/><br/>See [Defender/AllowScriptScanning](/windows/client-management/mdm/policy-csp-defender)|
63
+
|Scan [reparse points](/windows/win32/fileio/reparse-points) <br/> **Scan**\>**Turn on reparse point scanning**|Disabled|Not available <br/>See [Reparse points](/windows/win32/fileio/reparse-points)|
64
+
|Scan mapped network drives<br/>**Scan**\>**Run full scan on mapped network drives**|Disabled|`-DisableScanningMappedNetworkDrivesForFullScan`|
65
+
|Scan archive files (such as .zip or .rar files). <br/>**Scan**\>**Scan archive files**|Enabled|`-DisableArchiveScanning` <br/><br/>The [extensions exclusion list](configure-extension-file-exclusions-microsoft-defender-antivirus.md) will take precedence over this setting.|
66
+
|Scan files on the network <br/>**Scan**\>**Scan network files**|Enabled|`-DisableScanningNetworkFiles`|
67
+
|Scan packed executables<br/>**Scan**\>**Scan packed executables**|Enabled|Not available <br/><br/>Scan packed executables were removed from the following templates:<br/>- Administrative Templates (.admx) for Windows 11 2022 Update (22H2)<br/>- Administrative Templates (.admx) for Windows 11 October 2021 Update (21H2)|
68
+
|Scan removable drives during full scans only<br/>**Scan**\>**Scan removable drives**|Disabled|`-DisableRemovableDriveScanning`|
73
69
|Specify the level of subfolders within an archive folder to scan <p>**Scan**\>**Specify the maximum depth to scan archive files**|0|Not available|
74
-
|Specify the maximum CPU load (as a percentage) during a scan. <p> **Scan**\>**Specify the maximum percentage of CPU utilization during a scan**|50|`-ScanAvgCPULoadFactor` <p>**NOTE**: The maximum CPU load is not a hard limit, but is guidance for the scanning engine to not exceed the maximum on average. Manually run scans will ignore this setting and run without any CPU limits.|
75
-
|Specify the maximum size (in kilobytes) of archive files that should be scanned. <p> **Scan**\>**Specify the maximum size of archive files to be scanned**|No limit|Not available <p>The default value of 0 applies no limit|
76
-
|Configure low CPU priority for scheduled scans <p> **Scan**\>**Configure low CPU priority for scheduled scans**|Disabled|Not available|
70
+
|Specify the maximum CPU load (as a percentage) during a scan. <p> **Scan**\>**Specify the maximum percentage of CPU utilization during a scan**|50|`-ScanAvgCPULoadFactor`<br/><br/> The maximum CPU load is not a hard limit, but is guidance for the scanning engine to not exceed the maximum on average. Manual scans ignore this setting and run without any CPU limits.|
71
+
|Specify the maximum size (in kilobytes) of archive files that should be scanned.<br/>**Scan**\>**Specify the maximum size of archive files to be scanned**|No limit|Not available <br/><br/>The default value of 0 applies no limit|
72
+
|Configure low CPU priority for scheduled scans<br/>**Scan**\>**Configure low CPU priority for scheduled scans**|Disabled|Not available|
77
73
78
74
> [!NOTE]
79
-
> If real-time protection is turned on, files are scanned before they are accessed and executed. The scanning scope includes all files, including files on mounted removable media, such as USB drives. If the device performing the scan has real-time protection or on-access protection turned on, the scan will also include network shares.
75
+
> If real-time protection is turned on, files are scanned before they are accessed and executed. The scanning scope includes all files, including files on mounted removable media, such as USB drives. If the device performing the scan has real-time protection or on-access protection turned on, the scan also includes network shares.
80
76
81
77
## Use PowerShell to configure scanning options
82
78
83
-
For more information on how to use PowerShell with Microsoft Defender Antivirus, see
79
+
For more information on how to use PowerShell with Microsoft Defender Antivirus, see the following articles:
84
80
85
81
-[Manage Microsoft Defender Antivirus with PowerShell cmdlets](use-powershell-cmdlets-microsoft-defender-antivirus.md)
@@ -99,7 +95,7 @@ Email scanning enables scanning of email files used by Outlook and other mail cl
99
95
100
96
PST files used by Outlook 2003 or older (where the archive type is set to non-unicode) are also scanned, but Microsoft Defender Antivirus cannot remediate threats that are detected inside PST files.
101
97
102
-
If Microsoft Defender Antivirus detects a threat inside an email message, it will show you the following information to assist you in identifying the compromised email, so you can remediate the threat manually:
98
+
If Microsoft Defender Antivirus detects a threat inside an email message, the following information is displayed to assist you in identifying the compromised email so you can remediate the threat manually:
103
99
104
100
- Email subject
105
101
- Attachment name
@@ -108,19 +104,3 @@ If Microsoft Defender Antivirus detects a threat inside an email message, it wil
108
104
109
105
On any OS, only the network drives that are mapped at system level, are scanned. User-level mapped network drives aren't scanned. User-level mapped network drives are those that a user maps in their session manually and using their own credentials.
110
106
111
-
> [!TIP]
112
-
> If you're looking for Antivirus related information for other platforms, see:
113
-
> -[Set preferences for Microsoft Defender for Endpoint on macOS](mac-preferences.md)
114
-
> -[Microsoft Defender for Endpoint on Mac](microsoft-defender-endpoint-mac.md)
115
-
> -[macOS Antivirus policy settings for Microsoft Defender Antivirus for Intune](/mem/intune/protect/antivirus-microsoft-defender-settings-macos)
116
-
> -[Set preferences for Microsoft Defender for Endpoint on Linux](linux-preferences.md)
117
-
> -[Microsoft Defender for Endpoint on Linux](microsoft-defender-endpoint-linux.md)
118
-
> -[Configure Defender for Endpoint on Android features](android-configure.md)
119
-
> -[Configure Microsoft Defender for Endpoint on iOS features](ios-configure-features.md)
120
-
121
-
## See also
122
-
123
-
-[Customize, initiate, and review the results of Microsoft Defender Antivirus scans and remediation](customize-run-review-remediate-scans-microsoft-defender-antivirus.md)
124
-
-[Configure and run on-demand Microsoft Defender Antivirus scans](run-scan-microsoft-defender-antivirus.md)
125
-
-[Configure scheduled Microsoft Defender Antivirus scans](scheduled-catch-up-scans-microsoft-defender-antivirus.md)
126
-
-[Microsoft Defender Antivirus in Windows 10](microsoft-defender-antivirus-in-windows-10.md)
0 commit comments